Articles tagged with Sea Level Rise
Tangier Island in Chesapeake Bay has lost 62% of its habitable upland area since 1967, with further decline predicted within 15-30 years. Fully protecting and restoring the town would cost $250m-$350m.
Satellite images reveal a substantial increase in saltmarsh area and stable trends of tidal flat areas after 2012, driven by decreased anthropogenic activities and increased conservation and restoration efforts. Conservation efforts have positively impacted China's coastal wetlands, mitigating the loss of these important ecosystems.
A new MIT study provides detailed information on the wave-damping benefits of marsh plants, enabling coastal restoration planners to determine the area needed for mitigation. The analysis incorporates plant morphology and interactions with currents and waves, providing a more quantitative way to estimate the value provided by marshes.
Researchers found that changes to the ice sheet immediately impact the groundwater underlying the island, affecting Arctic hydrology and ocean circulation patterns. The discovery sheds new light on the importance of groundwater in responding to climate change.
A new assessment indicates that higher emissions will significantly impact Venice's flood risk, emphasizing the need for improved projections and protection infrastructure. The study highlights the importance of accurate sea level projections and the potential for extreme events like meteotsunamis to exacerbate flooding.
A new study predicts extreme sea levels will become 100 times more frequent worldwide, with an annual occurrence by the end of the century. The research, led by Claudia Tebaldi, suggests rising temperatures will have a significant impact on coastal regions, particularly in the tropics and lower latitudes.
A new study assesses the impacts of sea level rise and wetland change on storm surge flooding in the Chesapeake Bay region. The results show that even relatively weak storms in 2100 could have a greater impact than high-intensity storms today, with significant property damage and effects on people.
Researchers found that warmer Polar atmosphere leads to increased snowfall in Antarctica, offsetting sea level rise. The study used modern climate models to predict changes to sea levels and found the two ice sheets of Greenland and Antarctica respond differently.
Researchers have mapped significant geothermal heat beneath Thwaites Glacier in West Antarctica, revealing a new potential weak spot in the ice sheet's stability. This heat flow, estimated to be up to 150 milliwatts per square meter, could lead to easier sliding of the glacier and potentially accelerate its collapse.
Researchers measure increased vertical translation of dune toe along Holland coast, finding it outpaces sea level rise. The study's findings suggest other locations may experience similar changes due to global warming, highlighting the need for climate change adaptation measures.
A long-term study in Elkhorn Slough found that superabundant crabs weaken tidal creek banks, reducing marsh plant growth and increasing erosion. Reducing crab abundance led to increased salt marsh vegetation growth and enhanced sediment density.
A new study finds that global sea levels during the last interglacial may have been as low as 1.2 meters higher than today, rather than the previously accepted 6-9 meters. This suggests that ice sheet melting was not as extensive as thought, but also raises concerns about future projections.
Researchers developed a simple and fast method to analyze sulfur isotopes, enabling the detection of seawater intrusion into freshwater systems. This method can help investigate chemical changes in environments affected by sea level rise.
Researchers found a 40-meter fall in sea level increases eruption likelihood at Santorini and possibly other volcanoes worldwide. Climate change impacts volcanic activity, particularly as ice sheets retreat and global sea levels rise.
A new study by UTA researchers shows that building seawalls along the San Francisco Bay shoreline could increase flooding and incur hundreds of millions of dollars in damages. The team's findings suggest that non-traditional approaches, like strategic flooding, can provide more sustainable solutions for coastal communities.
The study reveals that seawalls can increase flooding and incur significant damages, while strategic flooding areas can absorb increased water and avoid damage. Bay Area communities need to coordinate their approaches to sea-level rise adaptation to find solutions that benefit the whole bay.
Researchers found that coastal communities in San Mateo County are at risk of financial instability from flooding, with lower-income households disproportionately affected. The study's new methodology aims to provide a human-centered approach to risk assessment, focusing on the residents most likely to lose their livelihoods when water...
A study using San Francisco Bay models found that protective coastal structures can exacerbate flooding along other parts of the shoreline. The analysis estimated significant regional increases in economic damage, up to $723 million, under certain sea-level rise scenarios.
Researchers used seismic sensors to study subglacial water flow on the Argentière glacier. The study revealed a complex drainage system with multiple cavities producing high water pressure, accelerating glacier movement.
A study led by the University of Hawaii at Manoa found that US Pacific and Gulf of Mexico coastlines will experience rapid increases in high-tide flooding days, with extreme months also emerging
Researchers found that coastal overtopping is set to increase exponentially by 2050, with a 50-fold increase possible under high emission scenarios. Global warming will exacerbate flooding risks in tropical areas and other hotspots, necessitating adaptation measures.
The Pine Island Glacier's ice shelf has been losing a significant portion of its area in recent years, causing the glacier to speed up. The study found that internal forces on the glacier are responsible for this process, which could lead to a more rapid and abrupt collapse.
A new study on Petermann Glacier found that the way under-ice landscape is represented in models can significantly impact future sea-level rise predictions. The researchers discovered that a warmer ocean could trigger the break-up of the glacier, leading to increased mass loss from Earth's polar ice sheets.
Researchers have extended Singapore's sea-level record to nearly 10,000 years ago, providing a more robust dataset to aid future predictions. The findings also reveal the first conclusive evidence that mangroves only existed in the Marina South area for around 300 years before succumbing to flooding associated with rising sea levels.
A large-scale research project assessed Earth's 92,033 debris-covered glaciers and found that debris substantially reduces glacier mass loss. This discovery will improve risk assessment for communities near these glaciers, which can lead to glacial lake formation and potential flood hazards.
A new study by Stevens Institute of Technology researcher finds that human-caused sea level rise contributed $8.1 billion to Hurricane Sandy's damage, with an additional 71,000 people and 36,000 homes affected. The research uses novel modeling techniques to quantify the costs of storm damage caused by climate change.
Researchers detected new early-warning signals indicating the Greenland Ice Sheet's destabilization and potential melting at limited warming levels. The study suggests that a tipping point is approaching in the central-western part of the ice sheet, which could lead to substantial long-term sea level rise.
A collaborative research project published in Nature offers the most complete sea-level rise projections created to date, with Antarctica remaining a wild card. Limiting global warming to 1.5 degrees C above pre-industrial temperatures could cut projected 21st century sea-level rise from land ice in half.
A new study led by UMass Amherst's Rob DeConto models the impact of different warming scenarios on the Antarctic Ice Sheet, finding that exceeding Paris Agreement targets will accelerate sea-level rise. The research suggests that ambitious action to rein in warming is necessary to prevent catastrophic ice loss and sea level rise.
A Rutgers coauthored study suggests catastrophic sea-level rise from Antarctic melting may occur if global warming exceeds 2 degrees Celsius, triggering rapid ice-sheet retreat and collapse. The risk of such an event is lower if the Paris Agreement's target is met.
A new Harvard study found that the collapse of the West Antarctic Ice Sheet could amplify global sea level rise estimates by an additional meter within 1,000 years. The researchers' calculations show that this effect would add 30% to the total projected sea level rise, exceeding previous forecasts.
A new study predicting human exodus in Bangladesh due to sea-level rise and climate change has significant global implications. The research model considers economic and human behavior factors, predicting that districts along the Bay of Bengal will be the first impacted, triggering a ripple effect across the country.
A recent study by URI researchers shows that the Gulf Stream's position relative to the Grand Banks of Newfoundland can predict rapid warming of the Northwest Atlantic Shelf. The team used satellite data to observe the mechanism behind these changes, which block the southwestward transport of cold water and lead to marine heat waves.
Scientists are searching for sunken treasure that holds key to protecting Texas' Gulf shoreline from storms and rising seas. They will create a high-resolution seismic map of ancient river valleys to estimate volume and quality of sand.
A third of Antarctic's ice shelf area could collapse into the sea if global temperatures reach 4°C above pre-industrial levels, new research shows. Limiting temperature rise to 2°C could halve the area at risk and potentially avoid significant sea level rise.
A recent study by Durham University reveals that the rapid sea-level rise at the end of the last ice age was primarily caused by the melting of ice sheets in North America and Scandinavia. This finding, which challenges previous theories, provides valuable insights into the complex interactions between ice-ocean-climate systems.
A Rutgers-led study reveals the 20th century saw the fastest sea-level rise in 2,000 years along much of the US Atlantic coast. The global increase from melting ice and warming oceans was more than twice the average for the past 1800 years.
New research reveals coastal populations experience relative sea-level rise of 7.8-9.9mm/year, outpacing the global average by up to four times, highlighting the urgent need for addressing human-induced subsidence to protect people and economies.
A new study reveals that fairy wrasses' diverged in form and colour after repeated sea level rises and falls during the last ice age, driven by an 'evolutionary arms race' to court females and chase off rival males. The research used a novel genome-wide dataset to reconstruct the fish's evolutionary history.
Researchers have reevaluated sea level rise predictions, finding they may be too conservative. By comparing model simulations with historical data, the team found that the rate of sea level rise has been accelerating over the past 150 years.
A new study finds that even a modest sea level rise would place 100 airports below mean sea level by 2100, posing a significant risk to global passenger and freight movements. The researchers ranked airports at risk from sea level rise, with some in Asia and Europe topping the list.
Researchers used phreatic overgrowths on speleothems in Mallorca caves to determine past sea levels, providing a way to precisely measure sea levels. The study's results show that sea level dropped significantly after the Pliocene period and fluctuated during warm periods.
Rutgers scientists found that bacteria cause sunlight-absorbing sediment to clump together and accumulate in meltwater streams on the Greenland ice sheet. This process can be incorporated into climate models for more accurate melting predictions.
A new study found that Hudson River tidal marshes are growing at a rate two to three times faster than sea level rise, suggesting they should be resilient to accelerated sea level rise. The research discovered that more than half of the marshes were created accidentally by humans between 1850 and now.
A new assessment suggests sea level rise could be higher than current estimates by 2100 due to uncertainties in ice sheet dynamics and warming oceans. Scientists identify key areas of research needed to improve models and predictions, including better mapping of glacier ground and improved coupling of atmosphere-ocean-ice sheet models.
Scientists analyzed 141 outlet glaciers on the Greenland Ice Sheet to predict how far thinning may spread along their flow lines. Glaciers flowing over gentle slopes could have a greater impact on sea-level rise due to their ability to let thinning expand hundreds of kilometers inland.
Research reveals Greenland outlet glaciers are halted by knickpoints, stabilizing areas that prevent coastal thinning from reaching inland. However, vulnerable northwest Greenland glaciers could contribute to sea level rise in the next 100 years due to flat bedrock.
Researchers at Stevens Institute of Technology predict that 100-year and 500-year flood levels will become regular occurrences in Jamaica Bay, New York by the end of the century. Climate change is expected to lead to more intense and frequent storms, causing greater flooding even if storm intensity remains the same.
A new study warns that the Greenland ice sheet will experience irreversible melting if global warming exceeds 2°C, leading to significant sea-level rise and permanent changes. The ice sheet's decline could be reversed with actions to counteract global warming before it's too late.
Mangrove forests are under pressure from three distinct threats: sea-level rise, lack of mud supply, and squeezed habitats. The study found that river dams decrease mud supply, while buildings and seawalls occupy space required for mangroves' survival.
A new study examines 12,000 years of sea-level rise and finds that changes in land area and human cultures happened at variable rates, out of step with the prevailing rate of sea-level rise. Researchers warn that future sea-level rise will not always be simple and that human responses will be equally localized.
A team of international coastal scientists disagrees with a paper predicting half the world's beaches will disappear by 2100 due to sea-level rise. They argue that beaches can migrate landward and retain their shape as long as they have space to move, but those backed by cliffs or seawalls are unlikely to survive.
Researchers propose adding altitude-measuring instruments to existing NOAA buoys to track global sea levels and monitor accelerating sea-rise rates. This approach will provide valuable insights into the effects of climate change on coastal areas.
Researchers found that accounting for climate variability increases predicted sea level rise by 2.7-4.3 inches by 2100, compared to 10.6-14.9 inches without variability. This additional ice melt will impact hurricane storm surges globally.
A Rutgers-led team created a model that enables improved sea-level rise projections and could help address climate change threats. The 'emulator' uses artificial intelligence to mimic ice-sheet behavior, providing valuable insights into ice sheet vulnerability through 2150.
A new study found that the spread of ghost forests across North Carolina's coastline can lead to significant losses in carbon stored in plants and trees above ground. Researchers discovered ways landowners can offset these losses, including tree plantings and proper drainage management.
A new study warns that up to 40% of O'ahu's sandy beaches could be lost by mid-century due to rising sea levels and shoreline hardening. The research assesses the risk of erosion hazards and identifies areas that qualify for emergency permitting, highlighting the need for creative solutions to rescue beachfront owners.
International model comparison reveals Greenland Ice Sheet will contribute 9cm to global sea-level rise by 2100, while Antarctic predictions vary between -7.8 to 30cm. However, ice-sheet models for Greenland underestimate the current changes in the ice sheet due to climate change.
The Antarctic Ice Sheet is projected to account for up to 30 cm of sea level rise between 2015 and 2100, with some scenarios suggesting a partial offsetting effect. The Greenland Ice Sheet may contribute an additional 1.5-14 cm over the same period, depending on greenhouse gas emissions.
Researchers document rapid acceleration and thinning of Pine Island and Thwaites Glaciers in Antarctica. The growth of damage areas on the ice shelves compromises integrity and drives further disintegration, highlighting the importance of incorporating damage processes into ice sheet models.